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9
RESULTS

Media Type
9
texts
Availability
9
Always Available
Topics & Subjects
8
Fertilizers
3
Soils
2
Manures
2
Tobacco
1
Agricultural chemistry
1
Crops
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Collection
9
American Libraries
9
Penn State University
7
Microfilm
Creator
1
davy, humphry, sir, 1778-1829
1
halligan, james edward, 1879-
1
hensel, julius
1
hughes, ronald clyde
1
merkle, f. g. (frederick grover), 1892-1960
1
morfit, campbell, 1820-1897
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Language
9
English
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